Capture dump when an error with the name InternalFailure is logged

Change-Id: I2a362b674022dbe1ea8bfe16876d0416f87d0af1
Signed-off-by: Jayanth Othayoth <ojayanth@in.ibm.com>

1 files changed, 67 insertions, 0 deletions

diff --git a/elog_watch.hpp b/elog_watch.hpp
new file mode 100644
index 0000000..cfdf41a
--- /dev/null
+++ b/elog_watch.hpp
@@ -0,0 +1,67 @@
+#pragma once
+
+#include <sdbusplus/bus.hpp>
+#include <sdbusplus/server.hpp>
+#include "config.h"
+
+#include "dump_manager.hpp"
+
+namespace phosphor
+{
+namespace dump
+{
+namespace elog
+{
+
+using IMgr = phosphor::dump::internal::Manager;
+
+/** @class Watch
+ *  @brief Adds d-bus signal based watch for elog commit.
+ *  @details This implements methods for watching for InternalFailure
+ *  type error message and call appropriate function to initiate dump
+ */
+class Watch
+{
+    public:
+        Watch() = delete;
+        ~Watch() = default;
+        Watch(const Watch&) = delete;
+        Watch& operator=(const Watch&) = delete;
+        Watch(Watch&&) = default;
+        Watch& operator=(Watch&&) = default;
+
+        /** @brief constructs watch for elog commits.
+         *  @param[in] bus -  The Dbus bus object
+         *  @param[in] intMgr - Dump internal Manager object
+         */
+        Watch(sdbusplus::bus::bus& bus, IMgr& iMgr):
+            iMgr(iMgr),
+            elogMatch(
+                bus,
+                sdbusplus::bus::match::rules::interfacesAdded() +
+                sdbusplus::bus::match::rules::path_namespace(
+                                              OBJ_LOGGING),
+                std::bind(std::mem_fn(&Watch::callback),
+                          this, std::placeholders::_1))
+        {
+            //Do nothing
+        }
+    private:
+
+        /** @brief Callback function for error log commit.
+         *  @details InternalError type error message initiates
+         *           Internal error type dump request.
+         *  @param[in] msg  - Data associated with subscribed signal
+         */
+        void callback(sdbusplus::message::message& msg);
+
+        /**  @brief Dump internal Manager object. */
+        IMgr& iMgr;
+
+        /** @brief sdbusplus signal match for elog commit */
+        sdbusplus::bus::match_t elogMatch;
+};
+
+}//namespace elog
+}//namespace dump
+}//namespace phosphor